So I have been having issues with my 30 gallon semi aggressive. The fish in the tank seem very lethargic. Until today I have been pulling a dead fish out a day. The thing that confuses me is that the Dwarf gouramis, redtailed shark and the yo-yo loaches. The barbs just keep dieing as well as a few of my danios just dropped off.
The water parameters
Ammonia- 0 (it spiked to .25 earlier in the week but i kept it under control with a simple water change and it has been fine since)
Nitrates and nitrates are both within there acceptable parameters
one of the barbs did have ich but i treated and it was fine after the three days of treatment I really have no clue what is going on and am afraid to do anything with the tank until i find out what this epidemic is.